Nootropic profile
Modafinil
Modafinil is a prescription wakefulness-promoting agent widely used off-label as a cognitive enhancer. It improves alertness, focus, executive function, and mental stamina - particularly during sleep deprivation - without the jitteriness of traditional stimulants.
Best for
Educational only: this is not medical advice. Always check with a qualified healthcare professional before starting any supplement.
What is Modafinil?
Modafinil (brand names Provigil, Alertec) is a eugeroic (wakefulness-promoting) medication originally developed to treat narcolepsy, shift work sleep disorder, and obstructive sleep apnoea.
What it does for you
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How to take it
- Typical dose: 100–200 mg per day, taken in the morning
- For cognitive enhancement: 100 mg is often sufficient; 200 mg for more demanding tasks
- Onset: Effects begin within 30–60 minutes and last 12–15 hours
- Half-life: Approximately 12–15 hours - avoid taking after midday to prevent sleep disruption
- Frequency: Most users take it intermittently (2–3 times per week) rather than daily to avoid tolerance
Watch out for
- Common side effects: Headache, nausea, anxiety, insomnia, and reduced appetite. Most are mild and dose-dependent.
- Rare but serious: Stevens-Johnson Syndrome (SJS) - an extremely rare but potentially life-threatening skin reaction. Discontinue immediately if a rash develops.
- Drug interactions: Reduces effectiveness of hormonal contraceptives. May interact with CYP3A4 substrates. Consult a doctor if taking other medications.
- Dependence potential: Low compared to amphetamines, but psychological dependence can develop with daily use.
- Pregnancy: Not recommended - insufficient safety data. Category C in the US.
The science, if you're curious.
- Modafinil binds to the dopamine transporter (DAT), increasing extracellular dopamine levels. This is likely its primary mechanism for promoting wakefulness...
- It increases histamine release in the hypothalamus, promoting wakefulness through the tuberomammillary nucleus - a key region in the sleep-wake cycle.
- Elevates norepinephrine in the prefrontal cortex, enhancing attention, alertness, and executive function.
- Activates orexin-producing neurons, which play a central role in maintaining wakefulness and arousal.
Where to find it
- Prescription: Available by prescription for narcolepsy, shift work disorder, and sleep apnoea
- Generic availability: Generic modafinil is widely available and significantly cheaper than brand-name Provigil
- Armodafinil: The R-enantiomer of modafinil (brand name Nuvigil), with a slightly longer duration of action
- Adrafinil: An over-the-counter prodrug that converts to modafinil in the liver, though it places additional strain on hepatic function
The research
Frequently asked
Modafinil is a prescription wakefulness-promoting agent widely used off-label as a cognitive enhancer. It improves alertness, focus, executive function, and mental stamina - particularly during sleep deprivation - without the jitteriness of traditional stimulants.
The main benefits people report from Modafinil are: Cognitive Enhancement, Creativity, Energy, Focus, Memory, Mood, Motivation.
Typical dose: 100–200 mg per day, taken in the morningFor cognitive enhancement: 100 mg is often sufficient; 200 mg for more demanding tasksOnset: Effects begin within 30–60 minutes and last 12–15 hoursHalf-life: Approximately 12–15 hours - avoid taking after midday to prevent sleep disruptionFreque...
Common side effects: Headache, nausea, anxiety, insomnia, and reduced appetite. Most are mild and dose-dependent.Rare but serious: Stevens-Johnson Syndrome (SJS) - an extremely rare but potentially life-threatening skin reaction. Discontinue immediately if a rash develops.Drug interactions: Reduces...
Modafinil binds to the dopamine transporter (DAT), increasing extracellular dopamine levels. This is likely its primary mechanism for promoting wakefulness...It increases histamine release in the hypothalamus, promoting wakefulness through the tuberomammillary nucleus - a key region in the sleep-wak...
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